I would argue that yes, you should invalidate them. The email change may be because the email account is compromised. And there is no harm in invalidating them, as the user is clearly logged in and can just request another one if they need to.
That being said, it is much more important to send a verification email to the old mail before you allow a change and if the user lost access, send instead an undo link valid for at least 7 days (ideally more). Otherwise, you risk account theft.
Lastly, if you support 2FA, you should not allow resetting both factors using just email.
PS: Also you should not allow changing mail for a period of time after password reset.